| Name the English Monarchs | 0 | - | 4.91 | 502,933 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,701 |
| Name that Greek Letter | 0 | - | 4.93 | 323,556 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,029 |
| The Trojan War | 0 | - | 4.83 | 39,739 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,907 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,552 |
| Roman Emperors | 0 | - | 4.95 | 120,103 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,802 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,685 |
| Monarchies of Europe | 0 | - | 4.90 | 98,181 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,073 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,514 |
| German History A-Z | 0 | - | 4.49 | 24,622 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,820 |
| English Royal Consorts | 0 | - | 4.38 | 37,366 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,487 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,066 |
| British History A-Z #1 | 0 | - | 4.45 | 46,504 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,962 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,847 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,435 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 82,185 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,739 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,063 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,936 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,884 |
| States of Germany | 0 | - | 4.95 | 152,702 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,079 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,344 |
| Monarchies of Asia | 0 | - | 4.97 | 71,110 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,159 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,055 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,387 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,199 |
| Countries Bordering France | 0 | - | 4.83 | 402,657 |
| Germany Country Quiz | 0 | - | 4.83 | 157,911 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,295 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,705 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,672 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,758 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,944 |
| Roman Names for Places | 0 | - | 4.62 | 58,310 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,761 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,689 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,625 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,506 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,444 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,828 |
| Europe Map Quiz | 0 | - | 5.00 | 4,764,303 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,107 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,782 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,344 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,884 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,199 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,311 |
| Counties of Ireland | 0 | - | 4.92 | 195,445 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,882 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,095 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,145 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,040 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,893 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,309 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,292 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,872 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,683 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,872 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 401,574 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,326 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,506 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,243 |
| Kings of France Quiz | 0 | - | 4.20 | 32,755 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,810 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,504 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,514 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,184 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,608 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,369 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,970 |
| British Monopoly Board | 0 | - | 4.52 | 41,174 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,572 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,464 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,083 |
| Countries in World War I | 0 | - | 4.88 | 228,205 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,568 |
| French History A-Z | 0 | - | 4.27 | 24,668 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,018 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,090 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,892 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,175 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,163 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,967 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,380 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 141,199 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,124 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,244,819 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,070 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,330 |
| The Only European Country ... | 0 | - | 4.91 | 216,771 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,211 |
| History of Russia Quiz | 0 | - | 4.47 | 31,923 |
| Germany A-Z | 0 | - | 4.56 | 62,624 |
| Famous Germans by Picture | 0 | - | 4.12 | 16,846 |
| History of Germany | 0 | - | 4.39 | 52,833 |
| Ancient Greek Words | 0 | - | 4.93 | 111,650 |
| History of Italy | 0 | - | 4.55 | 31,980 |
| Italian History A-Z | 0 | - | 4.21 | 17,717 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,281 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,165 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,668 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,242 |
| Spanish History A-Z | 0 | - | 4.37 | 19,305 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,295 |
| Counties of England | 0 | - | 4.97 | 797,261 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,875 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,675 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 356,259 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,709 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,243 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,891 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,826 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,598 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,191 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,392 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,174 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,998 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,696 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,039 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,794 |
| European Countries with One Border | 0 | - | 4.97 | 182,833 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,641 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,668 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,341 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,243 |
| Slavic Countries | 0 | - | 4.96 | 111,710 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,439 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,936 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,485 |
| Most Popular Baby Boy Names in Germany | 0 | - | 4.34 | 67,067 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,487 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,149 |
| Ancient Greek Inventions | 0 | - | 4.18 | 16,352 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,054 |
| Regions of Italy | 0 | - | 4.92 | 75,940 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,216 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,031 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,245 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,278 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,027 |
| British Geography A-Z | 0 | - | 4.42 | 19,527 |
| Animals in British History | 0 | - | 4.43 | 26,014 |
| Champions League Winners | 0 | - | 4.92 | 1,007,181 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,908 |
| Countries in World War II | 0 | - | 4.54 | 913,077 |
| Battle to Country | 0 | - | 4.91 | 53,368 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,894 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,633 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,400 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,214 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,889 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,553 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,475 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,927 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,194 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,763 |
| Russia Country Quiz | 0 | - | 4.83 | 114,525 |
| Countries That Border Russia | 0 | - | 4.98 | 461,860 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,364 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,354 |
| History of Austria | 0 | - | 4.70 | 17,866 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,702 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,812 |
| Departments of France | 0 | - | 4.93 | 54,181 |
| Geography of the French Empire | 0 | - | 4.45 | 27,067 |
| The French Revolution | 0 | - | 4.47 | 23,954 |
| History of France | 0 | - | 4.59 | 57,012 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,390 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,011 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,919 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,443 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,092 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,559 |
| Byzantine History | 0 | - | 4.91 | 28,874 |
| Byzantine Emperors | 0 | - | 4.92 | 14,200 |
| The Vikings! | 0 | - | 4.46 | 28,348 |
| Denmark Country Quiz | 0 | - | 4.78 | 75,933 |
| Finland Country Quiz | 0 | - | 4.50 | 59,691 |
| Norway Country Quiz | 0 | - | 4.44 | 77,380 |
| Iceland Country Quiz | 0 | - | 4.69 | 43,173 |
| The Portuguese Empire | 0 | - | 4.58 | 12,067 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,959 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,703 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,445 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,668 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,356 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,510 |
| Geography of the British Empire | 0 | - | 4.48 | 39,685 |
| Medieval English History | 0 | - | 4.53 | 43,521 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,711 |
| England or Wales? | 0 | - | 4.94 | 45,714 |
